I am looking for a steering wheel remote that is compatable for the Avic z120BT. I have been looking all over the forum and have been getting very confused. I have found the CD-SR series but am unsure if any of them work for the z120bt. I dont know if I need the CD-SR1(http://www.pioneerelectronics.com/PUSA/Car/Accessories/Remote-Controls/CD-SR1), the CD-SR100(http://www.crutchfield.com/S-cRcddkRZuz4/p_130CDSR100/Pioneer-CD-SR100.html), or some other type of remote. Also does anyone know of any type of remotes for this unit that something other than IR (i.e. bluetooth, RF, ect.). Thank yo